library/log4php/helpers/LoggerUtils.php
author Markus Broeker<broeker.markus@googlemail.com>
Sun, 14 Feb 2016 21:40:29 +0100
changeset 37 f4fce35327ff
parent 0 4869aea77e21
permissions -rw-r--r--
Source Code formatiert
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     1
<?php
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     2
/**
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     3
 * Licensed to the Apache Software Foundation (ASF) under one or more
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     4
 * contributor license agreements. See the NOTICE file distributed with
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     5
 * this work for additional information regarding copyright ownership.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     6
 * The ASF licenses this file to You under the Apache License, Version 2.0
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     7
 * (the "License"); you may not use this file except in compliance with
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     8
 * the License. You may obtain a copy of the License at
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
     9
 *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    10
 *       http://www.apache.org/licenses/LICENSE-2.0
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    11
 *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    12
 * Unless required by applicable law or agreed to in writing, software
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    13
 * distributed under the License is distributed on an "AS IS" BASIS,
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    14
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    15
 * See the License for the specific language governing permissions and
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    16
 * limitations under the License.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    17
 *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    18
 * @package log4php
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    19
 */
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    20
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    21
/**
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    22
 * Contains various helper methods.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    23
 *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    24
 * @package log4php
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    25
 * @subpackage helpers
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    26
 * @since 2.3
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    27
 */
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    28
class LoggerUtils {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    29
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    30
    /**
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    31
     * Splits a fully qualified class name into fragments delimited by the
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    32
     * namespace separator (\).
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    33
     *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    34
     * For backward compatibility, a dot (.) can be used as a delimiter as
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    35
     * well.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    36
     *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    37
     * @param string $name
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    38
     *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    39
     * @return array Class name split into fragments.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    40
     */
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    41
    public static function tokenizeClassName($name) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    42
        $name = str_replace('.', '\\', $name);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    43
        $name = trim($name, ' \\');
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    44
        $fragments = explode('\\', $name);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    45
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    46
        foreach ($fragments as $key => $fragment) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    47
            if (trim($fragment) === '') {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    48
                unset($fragments[$key]);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    49
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    50
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    51
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    52
        return $fragments;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    53
    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    54
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    55
    /**
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    56
     * Attempts to shorten the given class name to the desired length.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    57
     *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    58
     * This is done by separating the class name into fragments (delimited
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    59
     * by \ or .) and trimming individual fragments, starting with the left,
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    60
     * until desired length has been reached.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    61
     *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    62
     * The final fragment (i.e. class name) will never be shortened so the
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    63
     * result may still be longer than given length.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    64
     *
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    65
     * @param string $name The (qualified) class name.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    66
     * @param integer $length The length to shorten to. If null or 0 is given,
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    67
     * the name will be returned without shortening.
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    68
     */
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    69
    public static function shortenClassName($name, $length) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    70
        if ($length === null || $length < 0) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    71
            return $name;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    72
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    73
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    74
        $name = str_replace('.', '\\', $name);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    75
        $name = trim($name, ' \\');
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    76
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    77
        // Check if any shortening is required
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    78
        $currentLength = strlen($name);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    79
        if ($currentLength <= $length) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    80
            return $name;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    81
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    82
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    83
        // Split name into fragments
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    84
        $fragments = explode('\\', $name);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    85
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    86
        // If zero length is specified, return only last fragment
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    87
        if ($length == 0) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    88
            return array_pop($fragments);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    89
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    90
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    91
        // If the name splits to only one fragment, then it cannot be shortened
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    92
        $count = count($fragments);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    93
        if ($count == 1) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    94
            return $name;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    95
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    96
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    97
        foreach ($fragments as $key => &$fragment) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    98
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
    99
            // Never shorten last fragment
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   100
            if ($key == $count - 1) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   101
                break;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   102
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   103
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   104
            // Check for empty fragments (shouldn't happen but it's possible)
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   105
            $fragLen = strlen($fragment);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   106
            if ($fragLen <= 1) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   107
                continue;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   108
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   109
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   110
            // Shorten fragment to one character and check if total length satisfactory
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   111
            $fragment = substr($fragment, 0, 1);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   112
            $currentLength = $currentLength - $fragLen + 1;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   113
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   114
            if ($currentLength <= $length) {
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   115
                break;
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   116
            }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   117
        }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   118
        unset($fragment);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   119
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   120
        return implode('\\', $fragments);
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   121
    }
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   122
}
4869aea77e21 Bröker-Framework BFW-1
Markus Bröker <broeker.markus@googlemail.com>
parents:
diff changeset
   123